Which gpu to transcode x265 10 bits?

Plex Media Server Desktops & Laptops
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Hey guys !

i’m planning to upgrade my server. Cpu will be a 4790k (reused from my old computer) but it appears it doesn’t handle x265 correctly…

So i’m looking for GPU to transcode on-the-fly until 3-4 streams in 1080p.
I know there is a limit of 2 transcode at same time but found a patch to bypass this limit here : https://www.reddit.com/r/PleX/comments/9dim68/override_nvidas_2_stream_limitation_on_gtx_gpus/

I found 3 models until now…
Gtx 1050 : very cheap but i’m not confident about his power

Gtx 1650 : much more powerful but according this page :https://developer.nvidia.com/video-encode-decode-gpu-support-matrix
BUT there is no HEVC B Frame support (i don’t know if i really need it too…) + Volta NVENC (so not the best but i don’t know if i need the best^^)

And finally Gtx 1660 : in terms of power it should be perfect, but price is almost double…

So i would like to buy gtx 1050, but i don’t want have a poor server juste to save some money…

Maybe some of you have already tested these gpu ?

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This does not matter for Plex.

There are two parts to transcoding: decoding from the current format and encoding to the new format.

HEVC B frame support is for the encoding process (NVENC).

Plex encodes to H.264.

So, you do not need to worry about HEVC B-frame support for Plex.

Try this without an add-in GPU board first. The 4790K can easily support 3 - 4 1080p H.264 streams.

For H.264, it will use the on-board HD 4600 graphics for both decode and encode.

For H.265, it cannot decode hardware, but it will still encode to H.264 using the HD 4600 graphics.

References:

What Kind of CPU do I need for my server?

Passmark for 4790K

4790K at ark.intel.com

1 Like
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Ohhhh okay, yeah i could just test with only cpu^^
But decoding files from x265 will not be an issue without any hardware acceleration ?

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The 4790k is a powerful processor. Try it and see how it works. Might save you some money. You can always add a GPU card later.

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Okay thanks ! I’ll check that :wink:

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